Classification of fluorescent lamps and light emitting diodes by chromaticity and colour rendering property
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2019

Lighting of roads (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1988

General rules of recommended lighting levels (Amendment 1) (Foreign Standard)
Amendment by Japanese Industrial Standard / Japanese Standards Association, 01/01/2011